Combination truck and movable platform.



r. F. supra-no. COMBINATION TRUCK AND MOVABLE PLATFORM. APPLICA'HONFILED ILILY 23, 19"- Patented Apr. 2,1918,

2 SHEETS-SHEET l.

JACOB FRANKLIN 3:10pm:

I. F. SIIUFORD.

COMBINATION TRUCK AND MOVABLE PLATFORM.

APPLICATION FILED JULY 23. I917.

Patented Apr. 2, 1918.

2 SHEETS-SHEET 2.

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UNITED STATES PATEN T OFFICE.

JACOB FRANK SHUFORD, 01 LOS ANGELES, CALIFORNIA.

COMBINATION TRUCK AND MOVABLE PLATFORM.

Application filed July 23, 1917.

To all whom it may concern:

Be it known that I, Jason FRANKLIN Sucrose, a citizen of the UnitedStates, residin at Los Angeles, in the count of I os Ange es and StateofllCalifornia, lave 1nvented new and useful Improvements in CombinationTrucks and Movable Platforms, of which the following is a specification.

My object is to make a portable telescoping or disappearing towerplatform for genoral purposes.

An object of my invention is to provide a platform for the use ofworkmen in repairing trolley wires and the like, mount the platform upona sui hie carriage for transk portation, and prov' e sim le means ofraispower giant of the truck.

in and lowering the. plat orm.

5 nether object of mg invention is to mount a-Jinemans platform u on anautomobile truek so that the plat orm ma. be raised and lowered bytheoperation the A110 er object-ofmy invention is to pro vide a linemansplatform which maybe mounted upon a Wagoner other suitable carriage. andprovide means -for raising and lowering. ;the..platform manuallfy.Figure 1 is a side elevation o a combined automobile truck and platformconstructed in' accordance with-the principles of my m- '\'entionandshowingthe platform elevated and ready for use. r

Fi 2 is an enlar ed vertical cross-sect iona detail on the ines 22 ofFigs. 1

' -.nd 3.- V

U Fig. 3 is a conventional plan of the truck shown in Big. 1, with thetower and platform broken away,

.Fig. 4 is an enlarged horizontal cross-sectional detail through thelazy-tong tower, as on the line H of Fig. 1.

Fig. 5 isa vertical cross-section on the lines 55 of Figs. 1 and 3.

When the lazy-tong tower and platform is to be mounted on an automobiletruck and operated from the power-plant of the truck, as shownin Figs. 1and 3, the power-plant of the truck is of the usual construction exceptthat the clutch mechanism 1 is incorporated with the shaft 2. whichdrives the rear wheels 3 of the truck from the transmission gear 4 ofthe engine, the object being to disconnect the rear wheels so that therig will stand still upon the round while the tower is being operated.gear 5is fixed upon Specification of Letters Patent.

Patented Apr. 2, 1918.

Serial No. 182,336.

the shaft *2. A counter-shaft 6 is mounted parallel with the shaft 2 andcarries -a gear 1' meshing with the gear 5. A worm pi'nion e is fixedupon the shaft 6 and drives a worm gear 9 fixed upon the eountershaft10. The tower operating shaft 11 is mounted transversely of the frame 12and carries large gears 13 upon each end which meshes with the gears 13'upon the countershaft The gear 7 is connected to the shaft 6 through aclutch 14:, and the clutch'14: is operated from a pedal or lever 15 sothat when the engine is running the clutch 1 me be disconnected and theclutch 14 connecte and the shaft 11 will be rotated from the powerplant. The clutch 1 is operated from a edal or lever 16;

f it is'desiied to operate the tower and l tform manuall a bevel gear 17may be 2: d u on the siaft'fi, a crank-shaft 18 mount transversely ofthe ri with abevel gear 19 m shing with thebeve gear-r17, and

a crank 20 ;,upon' its outer end f9r manual the channel-irons 21 and1221 and arallel therewith to form guide-ways 25. T e shaft 11 ismounted in bearings nearthe forward ends of the guide-bars 23 and 24.-Wristpins 29 and 30 are fixed to the gears 13 and extend outwardly. Ashaft 31 extends cross-wise of the frame and slides in the guide-ways25. Pitmen or connecting rods and 33 connect the wristins 29'and 30 tothe outer ends of the she t 31 so that as the shaftll rotates the shaft31 slides forwardl and backwardly in the ide-ways 25. onnterbalancing'springs and 35 connect the shaft 31 to the romaidman of the frame.Lazy-tong levers;36 one? are pivotally connected at their lower enlis toshaft 11, and complementary lazy tong levers 3S and 39 are pivotallymounted upon the shaft 31, the levers 36 and 38 crossing at theircenters and pivot pins 40 are inserted through the centers to connectthe lovers together. The levers 37 and 39 are col-res )OIlCllglY crossedand connected. A socon set 0 lazy-tong levers 41 and 42 are connected tothe upper ends of the lovers 36 and 38 by pivots 43 and 44, and areconnected together by a pivot 45. A third set of lazy-tong levcrs 46 and47 are connected to the upper ends of the lovers l1 and 42 by ftions, 55and 56,, the comp ate construction the counter-shaft and mes ing withthe inFig. 1,andtheco one line be gitudinally extending slots 53, andpivots spirit of my invention a up and down from the base: I

pivots 48 and 49 and connected at their cenpicking fruit, transportingprison guards ters by a pivot 50. The levers 37 and 39 'andlookouts,'handlmg circus tents, doing have correspondin second and thirdsets. ambulance work, handling search lights, and The platform 51 ispivotally connected to the like. the u per ends of the levers 46 bypivots 52, The details-of construction may be varied and tlie side barsof the platform ave lonin many ways without departing from the as set upm the fol- 54 are inserted throu h the upper ends of lowing claims: Ythe levers 47 and slide 1n these slots 53. The I claim: w platform 51may be of any suitable construc- 1. An automobiletruck havin an en 'netion adapted for the use of workmen in reat its front end anda drive shat exten ing Fairing trolley lines and the like, and the from the engineto the rcar end for driving azytong levers ma be of any deslred the rearwheels,- means for connecting and length to produce a te escoping towerof any disconnecting the drive shaft from the rear desired height.wheels, 9. lazy-ton tower mounted u on the When the shaft 11 is rotatedto bring the frame of the truss to go up and own, a wrist-pins 29 and.30 into horizontal a ineplatform mounted upon the tower; one line mentm front of the shaft the tower 1s exofthe lazy-tongs beln pivotallyconnected tended and the platform elevated to its exto the frame and theot er line of lazy-tongs treme height, and when the shaft 11 is rotbeing connected to slide longitudinally of tated t0 .brin. the wristinsmto horizontal, the ame and connected to pit'men'; said'pitconnected towrist-pins; gears alinement be ind the aft, the tower is men" beincogilpletely collapsed and the platform lowcarr it e wrist-pins, a shaftmounted in er a I the time and carrying the gears, a counter- There aretwo sets of law tong 'cdnstrucshaft mounted in the frame, rs fixed uponof the lazy-tong co asecond counction 55 being shown gears carrying theI ctor-shaft parallel vvithiv eriv'e shaft and tig n fifi isshown'm'homontal\ ion. Fig. connected to counter-shaft by a 4.-"Thepivots 48, gQBand 49 'extgpnd' wormand the drive clear acrossthe riconnectthe two ets g of lazy-tongs to er. Each lazy-tong oonforconnecting anddlsconneeting the second sists of two lines of lovers, thelower end of counter shaft to and from thedrlvei shaft so V Bivotallyconnected at the that thedrive sha'ft'may bedisconuectew forward end 0and the upper end of the' same line being shaft connected to thejdriveshaft, and the ivotally connected to the platform. The tower'raised,sustained, and loweredby the ow'er end of the other line is shdmgiyconoperation of the engine.

nected to'ftha base and the upper end is 2. An automobile truck havingan engine slidingly connected to the platform. By at its forward andadifierential driving this amusement the p i rnaqse sgll chiimsnah-zitaqmmndrand' a driv'eshaft connectin the or ginate thedifferential driving y The bodies'ofthe Iazy-tong'leversmay be axle trough a clutch, a lazy-tong tower constructed of wood,- and bearingplates 57 mounted upon thetruck, a shaft mounted are fixed upon thelevers atthe points where transversely of the'truck, gearsupon the endsthe ivots'go throhgh the levers, so as to of the shaft E rein orce thewood and make metal bearings to one' line of t e laz for the pivots. Thebearing plates are chun mounted transverse y of the truck, gears nel-shaed in cross-section to-fit a tinst one connecting the counter-shaftto;,., the first of the wooden overs and shaft, a second counter-shnftmounted parside an two e 011m orsupportingframh' from the rear wheels,the second countershaft by spur a clutch mechanism itmen connecting thegears l -tongs, a counter-shaft have hubs 58 at the centers to formbearings alle'l with the drive shaft, a \vortnnnd gear for theivots,.and the levers are arranged connecting the second counter-shaftto the first counter-shaft, spur gearsconnecting the drive shaft to thesecond counterrshaft, and a clutch in the line between -the drive shaftand the tower; so at thedr-iveshnft may be disconnected from thedifferential driving axle and connected to operate the tower.

In testimony whereof I have signed my name to -this specification.

' J! FRANK SHUFORD.

